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Masayuki Kitagawa
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Saitama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
High-molecular weight conjugate of steroids
Patent number
RE46190
Issue date
Nov 1, 2016
Nippon Kayaku Kabushiki Kaisha
Masayuki Kitagawa
Information
Patent Grant
Method for manufacturing block copolymer
Patent number
9,346,923
Issue date
May 24, 2016
Nippon Kayaku Kabushiki Kaisha
Keiichirou Yamamoto
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High-molecular weight conjugate of podophyllotoxins
Patent number
8,940,332
Issue date
Jan 27, 2015
Nippon Kayaku Kabushiki Kaisha
Masayuki Kitagawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
High-molecular weight conjugate of physiologically active substances
Patent number
8,920,788
Issue date
Dec 30, 2014
Nippon Kayaku Kabushiki Kaisha
Masayuki Kitagawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Polymer conjugate of bioactive substance having hydroxy group
Patent number
8,808,749
Issue date
Aug 19, 2014
Nippon Kayaku Kabushiki Kaisha
Masayuki Kitagawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
High-molecular weight conjugate of steroids
Patent number
8,703,878
Issue date
Apr 22, 2014
Nippon Kayaku Kabushiki Kaisha
Masayuki Kitagawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Polymer conjugate of taxane
Patent number
8,323,669
Issue date
Dec 4, 2012
Nippon Kayaku Kabushiki Kaisha
Masayuki Kitagawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
High-molecular weight derivatives of camptothecins
Patent number
7,495,099
Issue date
Feb 24, 2009
Nippon Kayaku Kabushiki Kaisha
Masayuki Kitagawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Physiologically active substance NK175203, process for production t...
Patent number
5,505,944
Issue date
Apr 9, 1996
Nippon Kayaku Kabushiki Kaisha
Tomio Morino
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
2-halogeno-oxetanocin A and phosphoric ester thereof
Patent number
5,283,331
Issue date
Feb 1, 1994
Nippon Kayaku Kabushiki Kaisha
Seiichi Saito
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Antiviral phosphoric acid esters of oxetanocins
Patent number
5,179,084
Issue date
Jan 12, 1993
Nippon Kayaku Kabushiki Kaisha
Seiichi Saito
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Oxetanocin G
Patent number
5,164,500
Issue date
Nov 17, 1992
Nippon Kayaku Kabushiki Kaisha
Seiichi Saito
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Oxetanocin derivatives and their salts as well as use thereof
Patent number
5,028,598
Issue date
Jul 2, 1991
Nippon Kayaku Kabushiki Kaisha
Katsuhiko Kurabayashi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Novel process for producing oxetanocin G
Patent number
4,992,368
Issue date
Feb 12, 1991
Nippon Kayaku Kabushiki Kaisha
Seiichi Saito
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Benzopyran derivatives
Patent number
4,841,076
Issue date
Jun 20, 1989
Daiichi Seiyaku Co., Ltd.
Masayuki Kitagawa
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
COMPOSITION CONTAINING WATER-SOLUBLE DRUG CAUSING VASCULAR DISORDER...
Publication number
20240024339
Publication date
Jan 25, 2024
Nippon Kayaku Kabushiki-Kaisha
Takeshi ONDA
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
High-Molecular Weight Conjugate Of Resorcinol Derivatives
Publication number
20160279164
Publication date
Sep 29, 2016
Nippon Kayaku Kabushiki-Kaisha
Masaharu Nakamura
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
High-Molecular Weight Conjugate Of Resorcinol Derivatives
Publication number
20150011715
Publication date
Jan 8, 2015
Nippon Kayaku Kabushiki-Kaisha
Masaharu Nakamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Method For Manufacturing Block Copolymer
Publication number
20140288244
Publication date
Sep 25, 2014
NIPPON KAYAKU KABUSHIKI KAISHA
Keiichirou Yamamoto
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polymer Conjugate Of Bioactive Substance Having Hydroxy Group
Publication number
20120116051
Publication date
May 10, 2012
NIPPON KAYAKU KABUSHIKI KAISHA
Masayuki Kitagawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
High-Molecular Weight Conjugate Of Physiologically Active Substances
Publication number
20110201754
Publication date
Aug 18, 2011
NIPPON KAYAKU KABUSHIKI KAISHA
Masayuki Kitagawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
High-Molecular Weight Conjugate Of Steroids
Publication number
20100292414
Publication date
Nov 18, 2010
NIPPON KAYAKU KABUSHIKI KAISHA
Masayuki Kitagawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
POLYMER CONJUGATE OF TAXANE
Publication number
20100234537
Publication date
Sep 16, 2010
Masayuki Kitagawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
High-Molecular Weight Conjugate of Combretastatins
Publication number
20100004403
Publication date
Jan 7, 2010
Masayuki Kitagawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
High-molecular weight conjugate of resorcinol derivatives
Publication number
20090239782
Publication date
Sep 24, 2009
Masaharu Nakamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
High-Molecular Weight Conjugate of Podophyllotoxins
Publication number
20090162313
Publication date
Jun 25, 2009
Masayuki Kitagawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
High-molecular weight derivatives of camptothecins
Publication number
20060067910
Publication date
Mar 30, 2006
Masayuki Kitagawa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE